How to open ports on Arris BGW-210?

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by abmtx » Thu May 13, 2021 10:48 am
My cellphone provider, T-Mobile, sent me a CellSpot to help with my reception. It's connected via my internet gateway via ethernet cable.

Their tech support says I need to open UDP ports 123, 500, and 4500 on my internet router.

I've tried https://forums.att.com/conversations/at ... f606bdb4a2, https://portforward.com/arris/bgw210-700/, https://www.att.com/support/article/u-v ... /KM1215101 among other google results, but when checking on my computer via https://portchecker.co/ those ports are still closed.

Any ideas?

Thanks!
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